What are the differences between heavy cream and buttermilk in terms of their uses in cooking and baking?

Heavy cream is a high-fat dairy product that adds richness and creaminess to dishes, while buttermilk is a tangy, acidic liquid that helps tenderize and moisten baked goods. Heavy cream is often used in sauces, soups, and desserts for its luxurious texture, while buttermilk is commonly used in baking to create light and fluffy textures in cakes, biscuits, and pancakes.